1. What is the direction of the velocity of a positive charge that experiences the magnetic force shown in the figure below, assuming it moves perpendicular to B? XXX Bin X X X X XX a. upward b. to the right c. downward d. out of the page 2. What is the direction of the magnetic force on a negative charge that moves, as shown in the figure below? X X XB₂ XXX X X X XXX a. to the left b. upward c. downward d. out of the page F

8. A charge is moving at an angle of 30° relative to the direction of a magnetic field and experiences a magnetic force of 3.0 x 103 N. If this same charge were to move at the same velocity perpendicular to the same magnetic field what magnetic force will act on it? FL = qvB sint

1. A wire runs from north to south        a. A compass needle placed above the wire points with its north pole        toward the east. In what direction is the current flowing?         b. If a compass is placed underneath the wire, in which direction will its needle point?   2. What will be the direction of the magnetic field if the current is due upward?   3. How does the magnitude of the current passing through the conductor affect the magnetic field?

QUESTION 9 What is the direction of the magnetic field at the origin due to the wire carrying 10 A current? 10 A 20 A O a. +X O b. +Y Oc. -X O d.-Y O e. None of these